Iwaki Co., Ltd.

Ibaraki University

Tokyo Medical and Dental University

Shimane University

Tokyo Iken Co., Ltd.

Miwatec Co., Ltd.

Bivacor Pty Ltd

Toru Masuzawa

Akio Kishida

Tsutomu Furuzono

Yohji Okada

Hiroyuki Onuma

Eisuke Sasaki

Kozo Miyazaki

Tetsuya Higami

Daniel Timms

A bias magnetic flux is formed so as to be passed through the electromagnet core of an electromagnet, and a bypass magnetic path, serving as a magnetic path for a control magnetic flux, is formed in parallel with a permanent magnet, the bypass magnetic path being magnetized in a direction in which passage of the bias magnetic flux is blocked, and thus, even if the permanent magnet and the electromagnet are disposed in locations where the mutual magnetic fluxes of the permanent magnet and the electromagnet are superimposed, the control magnetic flux formed by the electromagnet is passed through the bypass magnetic path, whereby loss of the control magnetic flux can be suppressed. Thereby, the permanent magnet and the electromagnet can be disposed in locations where the mutual magnetic fluxes are superimposed, whereby the device can be made smaller in size.

Magnetic levitation control device and hybrid type magnetic bearing

A heart pump including first and second cavities, each cavity including a respective inlet and outlet, a connecting tube extending between the first and second cavities, an impeller including: a first set of vanes mounted on a first rotor in the first cavity portion; a second set of vanes mounted on a second rotor in the second cavity portion; and, a shaft connecting the first and second rotors, the shaft extending through the connecting tube, a drive for rotating the impeller and a magnetic bearing including at least one bearing coil for controlling an axial position of the impeller, at least one of the drive and magnetic bearing being mounted outwardly of the connecting tube, at least partially between the first and second cavity portions.

Heart pump controller

Methods and apparatus for controlling biological functions with mechanical vibration are provided. Stimulation is applied to cells of one of an organism, bacteria or virus by mechanical vibration. The biological function comprises biological functions relating to cell growth. The biological functions relating to cell growth may include at least one of cell cultivation, cell proliferation, cell fusion, and cell differentiation.

Method for controlling biological function with mechanical vibration and device therefor

A devicefor bonding adherends Tand T, as a device for bonding biological tissue to biological tissue or a biological tissue bonding material, comprises: a clamping partfor clamping the adherends Tand Tbetween membersand; a pressing partfor pressing the membertowards the member; a pressure control partfor controlling the pressure by the pressing part; a heating elementbuilt into the member; a heating control partfor controlling the heating by the heating element; a vibration generating partfor generating microvibration; and a vibration control partfor controlling the microvibration generated by the vibration generating part

Biological tissue bonding device and biological tissue bonding medical instrument

In a hybrid magnetic bearing, the electromagnet has a core wound with a control coil and has a main pole and a commutating pole with a commutating pole permanent magnet provided approximately parallel to each other at predetermined intervals in a protruding condition radially or axially to the rotor. In the magnetic bearing provided radially, two electromagnets are placed oppositely to each other across the rotor in an approximately horizontal position, and the rotor is arranged so as to have a predetermined gap with the main pole and the commutating pole, and the permanent magnet is provided between the adjacent electromagnets. In the magnetic bearing provided axially, two electromagnets are placed in parallel in an approximately horizontal position, and the rotor is arranged so as to have a predetermined gap with the main pole and the commutating pole, and the permanent magnet is provided between the adjacent electromagnets.

Hybrid magnetic bearing

Growing community of inventors

Hitachi, Japan

Toru Masuzawa